MITSUBISHI MATERIALS CORPORATION
BACK


CORNER ANGLE(CH) AND CUTTING CHARACTERISTICS
Cutting Resistance Comparison Between Different Insert Shapes
Three Cutting Resistance Forces in Milling
Corner Angle
45°		 The largest back force.
Bends thin workpiece and lowers cutting accuracy.
* Prevents workpiece edge chipping in cast iron cutting.		 Corner Angle 45°
Corner Angle
0°		 Back force is n the minus
direction. Lifts the workpiece when
workpiece clamp rigidity is low.		 Corner Angle 0°
Corner Angle
15°		 Corner angle 15° is recommended for face milling of workpieces with low rigidity such as thin workpieces. Corner Angle 15°
* Principal force: Force is in the opposite direction of face milling rotation.
* Back force: Force that pushes in the axial direction.
* Feed Force: Force is in the feed direction and is caused by table feed.